Etymograph

English

pro-

Pro- comes from Latin prō ‘in favor of, on behalf of’, from Proto-Italic *prō ‘in front of, before’, and ultimately from Proto-Indo-European *pér ‘through’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*pér‘through’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*pró‘forwards, before’reconstructed
  3. Proto-Italicc. 1500–700 BCE*prō‘in front of, before’reconstructed
  4. Latinc. 75 BCE–200 CEprō‘in favor of, on behalf of’
  5. Englishearliest quotation 2017pro-

attested reconstructed ? uncertain or disputed deepest recorded ancestor

Earlier history uncertain.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*pér‘through’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*pró‘forwards, before’reconstructed
  3. Proto-Italicc. 1500–700 BCE*prō‘in front of, before’reconstructed
  4. Latinc. 75 BCE–200 CEprō‘in favor of, on behalf of’
  5. Englishearliest quotation 2017pro-

Earliest quotation: 2017, Doug Criss and Ellie Kaufman, School issues new yearbooks after Trump’s name is removed fr: “A New Jersey high school will issue new yearbooks…”

Linked words

through Proto-Indo-European *per-

first, before, support, far, per, report, further, fear, opportunity, private, price, practice, press, port, primary, afford, appreciate, ford, pre, prime, forth, pregnant, practical, prize, parade, par, precious, interpretation, ferry, praise, privilege, pirate, fare, porch, pardon, primitive, peril, prix, afar, interpreter, 157 more

through Proto-Indo-European *pró ‘forwards, before’

prior, proton, prolactin, 10 more

through Latin prō ‘in favor of, on behalf of’

pro, prominent, prone, 5 more

Another origin of pro-

  1. Proto-Indo-Europeanc. 4500–2500 BCE*pro-‘toward, forward’reconstructed
  2. Proto-Italicc. 1500–700 BCE*pro-reconstructed
  3. Englishtodaypro-

Another origin of pro-

  1. Proto-Indo-Europeanc. 4500–2500 BCE*per-uncertain
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*pér‘through’reconstructed
  3. Proto-Indo-European, derivedc. 4500–2500 BCE*pró‘forwards, before’reconstructed
  4. Proto-Hellenicc. 2200–1600 BCE*próreconstructed
  5. Ancient Greekc. 800–300 BCEπρόpró‘before’
  6. Englishtodaypro-

Today it means

prefix agreeing with; supporting; favouring

Language periods are conventional ranges, not dates for this word.

Etymograph / Proto-Indo-European *pér / pro-